<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<form action="/day01/DemoServlet01/addStudentServlet" method="post">
    学生姓名<input type="text" name="username" ><br>
    学生年龄<input type="number" name="age"><br>
    学生成绩<input type="number" name="score"><br>
    <hr>
    <button type="submit">提交</button><br>
</form>
</body>
</html>